What you're running into is a clipping issue. There is a Camera Clipping Distance of 10,000 units. To avoid this, you can try playing around with the scale of your imported object. When importing the object, you can adjust the Scale to "10%" instead of 100%, and you should be able to zoom in/out of the object a lot more before the clipping takes place.

The other way is to save your 3D Invigorator scene. To do this, go into the 3D Invigorator Set-up window, then use "Cmd + S" to save the scene. Then, open the 3D Invigorator scene with a word editor. Then, in the word editor, do a search on the word "clip". For every value of "10000" you see, change the value to "30000". Save the scene again, and go back into 3D Invigorator and re-load the 3D Invigorator scene. You will now have a clip distance of 30,000 units.

Thanks, that sounds good. I've saved my scene and made the changes, but for the life of me can't figure out how to re-import the scene. Doesn't seem to mention it in the Help anywhere, and I can't find a tab for it in the plugin!

Ah ok, thanks. I can re-open the scene now. Sadly, the approach hasn't made any difference.

I basically need a spaceship to be massive, and be a reasonable distance away from the camera. Here's a project file that demonstrates the problem. It contains a scene that I've already altered (from 10.000 to 100,000 in this case!!)